Rolling window-screen.



l To all whom t may comfem:

. MonToN' e'. BUNNELI., oF CHICAGO, ILLINoIs,

AssIGNoR 'ro FREDEnIcK c.`l AUSTIN,-

oF CHICAGO, ILLINOIS..

l ROLLING WINDOW-SCREEN.

-Specicatiou of Letters Patent,A Patented Feb, 27, 1917.

Application filed July 8, 1911, Serial No. 637,542. Renewed August 19,1916. Serial No. 115,919.

-Be it known that I, MoRToN G. BUNNELL, a citizen of the United States of America, and resident of Chicago, Cook county, Ill1- nois, have invented a certain new and useful Improvement lin Rolling VVindow-Screens,-

of which the following is a specification.'

My invention relates to automatic window screens of that kind in whlch a flexible screen is carried on a roll and attached to the sash, whereby the opening and closing of the sash operates the screen, the latter covering the Windowspace when the sash 1s open, and being wound on the roll and concealed when the sash is closed, thus obviating the necessity of having the screeny acro the window at all times., and making it possible to bring the screen lnto use by simplyv open' Ving the sash. l

.Theobject of my invention is to provide an improved construction and arrangement whereby an automatic screen of this general character may be readily attached to any' window without changing the construction thereof, and whereby the upper edge of the screen may be readily attached to the lower edge of the sash, and whereby the side edges of the screen are effectively guided and ,held against displacement, as will hereinafter more fullyappear.

To these. and other useful ends, my invention consists in matters hereinafter set forth and claimed.

In the accompanying drawingsy Figure 1 is a perspective of a window with the lower sash open, showingr the same window' with a trolling screen embodying thev principles of my invention. g

Fig. 2 is an enlarged fragmentary perspective view of avportion of the said screen, and of adjacent portions of the window, showing one of the guides for the side edges ofthe screen. y

Fig. 3 is a fragmentary view of a portion of one of thesides of the screen, showing the flexible steel strip, or selva ge, with which the screen is provided to keep it from being pulled out of the guide.

As thus illustrated, the window may have a'frame A of any suitable or ordinary construction, no special construction being required. The screen B is of flexible wire cloth, and is rovided at its upper edge with a metal reinV orci ng strip b having holes b on the sashC. The said screen has its lower portion secured to a roll D upon which it is the Window frame.l The ends of the' roll D. 'l

are provided'` with springs d for rolling up the screen, and with provisions like those of an ordina-ry curtain roll, whereby thev screen B is operated like an' ordinary window curtain-that is lto say, will stay in any position. The screenworks in a slot e2 in the. upper cornerl of the casing/or housing E,

and the side strips b3 of the screen travel in guides F that are easily secured to the frame of any Window. l

Thus by embodying the screen -in the form of an attachment, it .is possible not only to adj ustit in any Window without reconstructing the frame thereof, and Without building the Window especially therefor, as was previously the case with automatic screens ofl this 'general character, but also to use the screen in conjunction with window ventilators of .the kind which lare inserted in the window'below the sash.

It will vbe seen that the wide steel strips 7; (Fig. 3) prevent the screen from fallingout of the, guides F, it being understood that these guides are made to fit closely upon the said strips, whereby the latter are prevented from flexing, and as they are so wide that they cannot bend edgewise, it follows that pressure on the surface ofthe screen will not pull the side edges thereof out of said guides. g

I dov not limit myself to the exact construction shown and described.

What I claim as my invention is:

v 1. A rolling screen having its side edges reinforced by fiat strips of Vflexible sheet metal, and guides for saidl strips, each strip being of a Width to prevent edgewise flexibility thereof, and said guides depending on' the edgewise stiffness of' said strips to hold the edges of the screen against displacement when the windowis open.

2. A rolling screen. having its side edges reinforced by flat strips of iexible sheet metal, and guidesfor said strips, each strip being of a width to prevent edgewise flexibility thereof, and said guides depending on the edgeWise-stii'ness ,of said strips to hold the edges ofthe screen against displacement when the Window is open, each guide engaging the opposite surfaces of the strip to pre- Vent flexing of the latter.

3. A rolling screen having its side edges reinforced by flat strips of fiexible .sheet metal, and guides for said strips, each strip being of a Width to prevent edgewise `flexibil-ity thereof, and saijfd guides depending on the kedgewise stiffness of said strips to hold the edges of the screen against displacement when the Window is open, and an attaching strip for the upper -edge of said screen, the ends of said attaching strip being disposed in said guides.

Signed by me at Chicago, Illinois, this 30th day'of June,.1911.

MORTON G. BUNNELL. Witnesses:

J. NoRnY, S. LEWIS. 

